<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="专业" prop="majorId">
        <el-cascader placeholder="请选择专业" v-model="majorValue" :show-all-levels="false" :options="MajorsNameList"
          @change="handleChange1" clearable>
          <template slot-scope="{ node, data }">
            <span>{{ data.label }}</span>
            <span v-if="!node.isLeaf"> ({{ data.children.length }}) </span>
          </template>
        </el-cascader>
      </el-form-item>
      <el-form-item label="年级" prop="gradeId">
        <!-- <el-input v-model="form.gradeId" placeholder="" /> -->
        <el-select v-model="queryParams.gradeId" filterable clearable placeholder="请选择年级">
          <el-option v-for="item in gradeList" :key="item.gradeId" :label="item.gradeName" :value="item.gradeId">
          </el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="班级名称" prop="className">
        <el-input v-model="queryParams.className" placeholder="请输入班级名称" clearable @keyup.enter.native="handleQuery" />
      </el-form-item>
      <!-- <el-form-item label="院系" prop="deptId">
        <el-input v-model="queryParams.deptId" placeholder="请输入院系" clearable @keyup.enter.native="handleQuery" />
      </el-form-item> -->
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd"
          v-hasPermi="['system:class:add']">新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="success" plain icon="el-icon-edit" size="mini" :disabled="single" @click="handleUpdate"
          v-hasPermi="['system:class:edit']">修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="danger" plain icon="el-icon-delete" size="mini" :disabled="multiple" @click="handleDelete"
          v-hasPermi="['system:class:remove']">删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="warning" plain icon="el-icon-download" size="mini" @click="handleExport"
          v-hasPermi="['system:class:export']">导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="classList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />

      <el-table-column label="专业" align="center" prop="majors.majorName" width="250" />
      <el-table-column label="年级" align="center" prop="grade.gradeName" />
      <el-table-column label="班级名称" align="center" prop="className" width="270" />
      <el-table-column label="班级代码" align="center" prop="classCode" />
      <el-table-column label="学院" align="center" prop="dept.deptName" />
      <el-table-column label="辅导员" align="center" prop="teacher.name" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)"
            v-hasPermi="['system:class:edit']">修改</el-button>
          <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)"
            v-hasPermi="['system:class:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total > 0" :total="total" :page.sync="queryParams.pageNum" :limit.sync="queryParams.pageSize"
      @pagination="getList" />

    <!-- 添加或修改班级信息对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="专业名称" prop="majorId">
          <el-cascader :show-all-levels="false" filterable placeholder="请选择专业" v-model="form.majorId"
            :options="MajorsNameList" @change="handleChange2" clearable>
            <template slot-scope="{ node, data }">
              <span>{{ data.label }}</span>
              <span v-if="!node.isLeaf"> ({{ data.children.length }}) </span>
            </template>
          </el-cascader>
        </el-form-item>
        <el-form-item label="年级" prop="gradeId">
          <!-- <el-input v-model="form.gradeId" placeholder="" /> -->
          <el-select v-model="form.gradeId" filterable clearable placeholder="请选择年级">
            <el-option v-for="item in gradeList" :key="item.gradeId" :label="item.gradeName" :value="item.gradeId">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="班级名称" prop="className">
          <el-input v-model="form.className" placeholder="请输入班级名称" />
        </el-form-item>
        <el-form-item label="班级代码" prop="classCode">
          <el-input v-model="form.classCode" placeholder="请输入班级代码" />
        </el-form-item>
        <el-form-item label="辅导员" prop="teacherId">
          <el-select style="width: 300px;" v-model="form.teacherId" filterable clearable placeholder="请选择辅导员">
            <el-option v-for="item in TeacherNameList" :key="item.id" :label="item.tno + '--' + item.name"
              :value="item.id">
            </el-option>
          </el-select>
        </el-form-item>


      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listClass, getClass, delClass, addClass, updateClass, getMajorsName } from "@/api/stuCQS/basedata/class";
import { listTeacherName } from "@/api/stuCQS/basedata/teacher";
import { listGrade } from "@/api/stuCQS/basedata/grade";
export default {
  name: "Class",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 班级信息
      //表格数据
      classList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        majorId: null,
        className: null,
        deptId: null,
        status: null,
        gradeId: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        majorId: [
          { required: true, message: "专业id不能为空", trigger: "blur" }
        ],
        className: [
          { required: true, message: "班级名称不能为空", trigger: "blur" }
        ],
        gradeId: [
          { required: true, message: "年级不能为空", trigger: "blur" }
        ],
        teacherId: [
          { required: true, message: "辅导员不能为空", trigger: "blur" }
        ],
      },
      majorValue: null,
      MajorsNameList: [],//专业名称集合
      TeacherNameList: [],//辅导员名称列表
      gradeList: [],//年级列表
    };
  },
  created() {
    this.getList();
    this.getMajorsNameList();
    this.getTeacherNameList();
    this.getGradeNameList();
  },
  methods: {
    /** 查询班级信息列表 */
    getList() {
      this.loading = true;
      listClass(this.queryParams).then(response => {
        this.classList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    getMajorsNameList() {//获取专业名称列表
      getMajorsName().then(res => {
        this.MajorsNameList = res.data
      })
    },
    getTeacherNameList() {//获取辅导员名称列表
      listTeacherName().then(res => {
        console.log(res)
        this.TeacherNameList = res.data
      })
    },
    getGradeNameList() {//获取年级名称列表
      listGrade().then(res => {
        this.gradeList = res.rows
      })
    },

    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        classId: null,
        majorId: null,
        gradeId: null,
        className: null,
        deptId: null,
        teacherId: null,
        status: null,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null
      };
      this.resetForm("form");
    },
    //搜索专业选择
    handleChange1(value) {
      this.queryParams.majorId = value[1]
      console.log(value);
    },
    //添加修改
    handleChange2(value) {
      this.form.majorId = value[1]
      console.log(value);
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.classId)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加班级信息";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const classId = row.classId || this.ids
      getClass(classId).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改班级信息";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.classId != null) {
            updateClass(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addClass(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const classIds = row.classId || this.ids;
      this.$modal.confirm('是否确认删除班级信息编号为"' + classIds + '"的数据项？').then(function () {
        return delClass(classIds);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => { });
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('system/class/export', {
        ...this.queryParams
      }, `class_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
